CN106190204A - A kind of waste heat recycling system for coal low temperature distillation stove and waste heat recycle method - Google Patents
A kind of waste heat recycling system for coal low temperature distillation stove and waste heat recycle method Download PDFInfo
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- CN106190204A CN106190204A CN201610541886.XA CN201610541886A CN106190204A CN 106190204 A CN106190204 A CN 106190204A CN 201610541886 A CN201610541886 A CN 201610541886A CN 106190204 A CN106190204 A CN 106190204A
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- thermal
- thermal medium
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- house steward
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/04—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B45/00—Other details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
- F28D7/082—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
nullThe invention discloses a kind of waste heat recycling system for coal low temperature distillation stove,Including medium reservoir、The imported valve of circulating pump、Circulating pump、The outlet valve of circulating pump、Take thermal medium inlet house steward、Take thermal、Take thermal medium inlet house steward、Residual heat using device,According to taking thermal medium flow direction,Medium reservoir is connected with circulating pump by the imported valve of circulating pump,Circulating pump is connected with taking thermal medium inlet house steward by the outlet valve of circulating pump,Take thermal medium inlet house steward to be connected with taking thermal by pipeline,Take thermal to be connected with taking thermal medium inlet house steward by pipeline,Take thermal medium inlet house steward to be connected with residual heat using device by pipeline,Residual heat using device is connected with medium reservoir by pipeline,The described thermal that takes is arranged on the bottom of retort section in coal low temperature distillation stove,The present invention also provides for a kind of residual-heat utilization method for coal low temperature distillation stove,The present invention can reclaim semi-coke heat,Do not produce waste water、Waste vapour、The pollutant such as waste oil.
Description
Technical field
The present invention relates to coal chemical technology, particularly to a kind of waste heat recycling system for coal low temperature distillation stove and
Waste heat recycle method.
Background technology
Northern Shensi rich coal resources, the coal seam age is short, and degree of coalification is low, volatile matter is high, burning-point is low, tar yield is high, is
The quality raw materials of low temperature distillation.Through development for many years, coal low temperature distillation industry has become a big pillar industry of local economy,
Production capacity has reached 0.18~0.2 hundred million ton/year.As a new industry, remain and need to solve in substantial amounts of Technology problem.From
Sustainable development of socio-economy overall situation is set out, and actively develops the resource comprehensive utilization technology of retort process, and exploitation clean coking is new
Technique, forms clean coking production new technology and the outfit being suitable for northern Shensi coal characteristic as early as possible, is greatly improved northern Shensi coal, coal
Tar, coke-oven coal vapour and the scientific and technological level of generation comprehensive technology thereof, to Northern Shaanxi Energy chemical base build and to the whole nation society and
It is significant through Zico sustainable development.
Using vertical internal thermal stove the production of northern Shensi semi-coke at present, pyrolysis temperature, with middle Wen Weizhu, uses wet quenching more
Mode, by semi-coke from 600 DEG C of quenchings to 100 DEG C, operating pressure is big, and semi-coke sensible heat is not utilized effectively.
Summary of the invention
For the defect overcoming above-mentioned prior art to exist, the present invention provides a kind of waste heat recovery for coal low temperature distillation stove
Utilizing system and waste heat recycle method, this system is reasonable in design, and the method environmental protection will not produce the environmental pollutions such as waste vapour,
The present invention can recycle semi-coke heat, reduces the operating pressure of coal low temperature distillation stove quenching section.
For achieving the above object, the present invention provides following technical scheme:
8. the invention discloses a kind of waste heat recycling system for coal low temperature distillation stove, including medium reservoir,
The imported valve 1 of circulating pump, circulating pump 2, the outlet valve 3 of circulating pump, take thermal medium inlet house steward 6, take thermal 15, take heat
Medium entrance house steward 10, residual heat using device 14, according to taking thermal medium flow direction, take thermal medium reservoir by circulating pump
Imported valve 1 is connected with circulating pump 2, and circulating pump 2 is connected with taking thermal medium inlet house steward 6 by the outlet valve 3 of circulating pump, takes
Thermal medium inlet house steward 6 is connected with taking thermal 15 by pipeline, takes thermal 15 and passes through pipeline and take thermal medium inlet house steward
10 are connected, and take thermal medium inlet house steward 6 and are connected with residual heat using device 14 by pipeline, residual heat using device 14 by pipeline and
Taking thermal medium reservoir to be connected, the described thermal 15 that takes is arranged on the bottom of retort section in coal low temperature distillation stove 9.
As a further improvement on the present invention, take the entrance of thermal medium inlet house steward 6 to be disposed with and take thermal medium inlet
Thermometer 4, take thermal medium inlet piezometer 5, take the outlet of thermal medium inlet house steward 6 and be disposed with and take thermal medium outlet pressure
Count 11, take thermal medium outlet thermometer 12, it is therefore an objective to according to taking thermal medium inlet thermometer and taking thermal medium outlet thermometer
Temperature controls to take thermal medium flow velocity.
Take be provided with between thermal medium inlet house steward 6 and residual heat using device 14 take thermal medium outlet valve 13 control from
Take thermal medium inlet house steward 6 and out flow to the flow velocity taking thermal medium of residual heat using device 14.
As a further improvement on the present invention, the described thermal 15 that takes includes taking Thermal protection cover 8 and heat removing tube 7, takes heat
Protective cover 8 is fixing with coal low temperature distillation stove 9 inwall to be connected, and is provided with heat removing tube (7) in taking Thermal protection cover (8), and heat removing tube 7 entrance is worn
Crossing and take Thermal protection cover 8 and take thermal medium inlet house steward 6 and be connected, heat removing tube 7 exports through taking Thermal protection cover 8 and taking thermal medium inlet
House steward 6 is connected.
The described Thermal protection cover 8 that takes, at least provided with one, takes the quantity size according to coal low temperature distillation stove of Thermal protection cover 8
Arranging, gas retort is the biggest, installation the most.
Described Thermal protection cover 8 upper end that takes is triangle or arc, and described Thermal protection cover 8 lower end that takes is rectangle,
Take Thermal protection cover 8 upper end and be designed to triangle or arc is in order to semi-coke is smooth and easy by taking thermal 15, if being designed to it
Its shape, semi-coke is likely taking the accumulation of Thermal protection cover upper end, is being unfavorable for semi-coke and takes Thermal protection cover 8 heat exchange, taking Thermal protection cover 8
Lower end is designed to rectangle, is both to be beneficial to semi-coke discharge from taking thermal, and the most beneficially heat removing tube 7 is through taking Thermal protection cover 8.
Described one takes at least 1 heat removing tube 7 being provided with arch in Thermal protection cover 8, the design of the arch of heat removing tube 7 be for
Allow semi-coke and take thermal medium heat exchange more fully.
It is as a further improvement on the present invention, described that to take the medium that takes that thermal 8 is passed through be water, gas or oil.
As a further improvement on the present invention, described residual heat using device 14 is that oil tank attemperator, raw coal are dried dress
Put or produce plant area's heating plant.
The present invention also provides for a kind of residual-heat utilization method for coal low temperature distillation stove, comprises the following steps:
1) take thermal medium and be full of heat removing tube:
1-1) opening imported valve 1 and the outlet valve 3 of circulating pump, circulating pump 2 will take thermal medium from taking thermal medium savings
Pond is extracted out;
The thermal medium that takes after 1-2) extracting out takes thermal medium inlet house steward 6 along pipeline flow-direction;
1-3) take thermal medium and flow to take thermal 15 by taking thermal medium inlet house steward 6;
2) take thermal medium and 600 DEG C of semi-coke realize heat exchange: take thermal medium and from bottom to top flow in thermal 15, from dry taking
600 DEG C of semi-coke that the section of evaporating is got off from top to bottom are moved in thermal 15 taking, and 600 DEG C of semi-coke are conducted to take by taking thermal 15
Thermal medium is taken in thermal 15, in whole diabatic process, 600 DEG C of semi-coke and take thermal medium and be not directly contacted with, the orchid after heat exchange
Charcoal temperature drops to 300 DEG C-100 DEG C;The conduction route of semi-coke heat is to first pass through to take Thermal protection cover 8 and be conducted to heat removing tube 7, then leads to
That crosses that heat removing tube 7 passes to the inside takes thermal medium, owing to semi-coke discord takes thermal medium and directly contacts, because of without producing waste water, giving up
The pollutant such as vapour, waste oil.
3) take thermal medium and waste heat recovery device and realize heat exchange:
The thermal medium that takes after 3-1) realizing heat exchange with 600 DEG C of semi-coke takes thermal medium inlet house steward from taking the inner flow direction of thermal 15
10;
The thermal medium that takes 3-2) taking the inner flowing of thermal 15 flows to heat recovery by taking thermal medium inlet house steward 10
Device 14;
In waste heat recovery device 14,3-3) take thermal medium be still that in pipeline flowing, and heat recovery dress
Put 14 to be not directly contacted with and complete indirect heat exchange process by tube wall;
4) recycling of thermal medium is taken: the thermal medium that takes after realizing heat exchange with waste heat recovery device 14 passes through pipeline
Flow to take thermal medium reservoir and carry out recycle and reuse.
Use the invention of as above technical scheme, have the advantages that
Whole recycling system is a closed loop system, takes thermal medium and always flows in the duct in closed loop system,
Heat exchange source outside with pipeline the most directly contacts, but by tube wall indirect heat exchange, thus whole process will not produce as waste vapour,
The environmental pollution such as waste water, waste oil.
The present invention can recycle semi-coke heat, takes thermal medium process and takes thermal, owing to directly not connecing with semi-coke
Touch, taking medium and can directly apply to raw coal as thermal source and be dried, oil tank insulation, produce plant area heat supply etc. after heat exchange, take
When thermal medium is applied as thermal source, always flow in the duct owing to taking thermal medium, and get along well heat exchange source such as run of mine coal seam, oil etc.
Directly contact, thus take and may return to take thermal medium reservoir after thermal medium is applied as thermal source and again reclaim circulation profit
With.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the right view taking thermal of the present invention;
Wherein 1. pump inlet valve;2. circulating pump;3. circulating-pump outlet valve;4. take thermal medium inlet thermometer;
5. take thermal medium inlet piezometer;6. take thermal medium inlet house steward;7. heat removing tube;8. take Thermal protection cover;9. coal low temperature distillation stove;
10. take thermal medium outlet house steward;11. take thermal medium outlet piezometer;12. take thermal medium outlet thermometer;13. take thermal medium goes out
Mouth valve;14. waste heat recovery device;15. take thermal.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and technique effect clearer, below in conjunction with the present invention's
Accompanying drawing in embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention.
Embodiment one
As it is shown in figure 1, the embodiment of the present invention provides a kind of waste heat recycling system for coal low temperature distillation stove, including
Gas reservoir, pump inlet valve 1, circulating pump 2, circulating-pump outlet valve 3, gas feed house steward 6, take thermal 15,
Gas outlet header 10, raw coal drying device 14, according to gas flow direction, gas reservoir passes through pump inlet valve 1
Being connected with circulating pump 2, circulating pump 2 is connected with gas feed house steward 6 by circulating-pump outlet valve 3, and gas feed house steward 6 passes through
Pipeline is connected with taking thermal 15, takes thermal 15 and is connected with gas outlet header 10 by pipeline, and gas outlet header passes through
Pipeline is connected with raw coal drying device 14, and raw coal drying device 14 is connected with gas reservoir by pipeline, wherein takes thermal
The bottom of the 15 interior retort section being arranged on coal low temperature distillation stove 9 as shown in Figure 2.
In order to the semi-coke of retort section in coal low temperature distillation stove is dropped to 300 DEG C from 600 DEG C, preferably realize taking thermal 15
Take hot purpose, take the entrance of thermal 15 and gas inlet temperature meter 4, gas feed piezometer 5 be set, take the outlet of thermal
Gas outlet pressure meter 11, gas outlet temperature meter 12 are set, when gas outlet temperature is higher than design temperature, drive systemic circulation pump
Imported valve 1 and outlet valve 3 control gas flow, correspondingly, when gas outlet temperature is less than design temperature, turns down and follow
Ring pump inlet valve 1 and outlet valve 3 control gas flow.
Regulate the flow velocity of gas flow raw coal drying device 14 with gas outlet valve 13, control to flow to gas reservoir
The temperature of gas.
Taking thermal 15 to include taking Thermal protection cover 8 and heat removing tube 7, being provided with upper end in taking thermal 15 is triangle or arc
Shape, lower end is rectangular 4 and takes Thermal protection cover 8, each takes 2 shapes being provided with inside Thermal protection cover 8 as depicted in figs. 1 and 2
Shape is the heat removing tube 7 of arch, say, that takes in thermal 15 one and has 4 and take Thermal protection cover 8 and 8 heat removing tubes 7, takes heat
Protective cover 8 is fixing with coal low temperature distillation stove 9 inwall to be connected, and heat removing tube 7 entrance is through taking Thermal protection cover 8 and gas feed house steward 6
Being connected, heat removing tube 7 exports and is connected with gas outlet header through taking Thermal protection cover 8.
The residual-heat utilization method for coal low temperature distillation stove based on embodiment one realizes according to following steps:
1) gas is full of heat removing tube:
1-1) opening pump inlet valve 1 and outlet valve 3, gas is extracted out by circulating pump 2 from gas reservoir;
Gas after 1-2) extracting out is along pipeline flow-direction gas feed house steward 6;
1-3) gas takes Thermal protection cover 8 by gas feed house steward 6 through 4 and flows to 8 heat removing tubes 7;
2) gas and 600 DEG C of semi-coke realize heat exchange: gas from bottom to top flows in 8 heat removing tubes 7, gets off from retort section
600 DEG C of semi-coke from top to bottom move in 4 spaces taken between Thermal protection cover 8,600 DEG C of semi-coke take Thermal protection by 4
Heat is conducted to the gas inside 8 heat removing tubes 7 by cover 8, and in whole diabatic process, 600 DEG C of semi-coke and gas are not directly contacted with,
Semi-coke temperature after heat exchange drops to 300 DEG C;
3) gas and raw coal realize heat exchange:
Gas after 3-1) realizing heat exchange with 100 DEG C of semi-coke takes heat through 4 in 8 heat removing tubes taken thermal 15
Protective cover flows to gas outlet header 10;
3-2) in 8 heat removing tubes, the gas of flowing is controlled by taking thermal medium outlet valve 13 after gas outlet header 10 converges
Gas flow raw coal drying device 14 processed;
3-3) in raw coal drying device 14, gas is still that in pipeline flowing, and the run of mine coal seam outside pipeline the most directly connects
Touch and complete indirect heat exchange process by tube wall;
4) recycling of gas: realize the gas after heat exchange with raw coal and flow to gas reservoir by pipeline and reclaim
Recycle.
Embodiment two
The embodiment of the present invention provide a kind of waste heat recycling system for coal low temperature distillation stove, including water reservoir 1,
Pump inlet valve 1, circulating pump 2, circulating-pump outlet valve 3, water inlet house steward 6, take thermal 15, water out house steward 10,
Raw coal drying device 14, according to water flow direction, water reservoir is connected with circulating pump 2 by pump inlet valve 1, circulating pump
2 are connected with water inlet house steward 6 by circulating-pump outlet valve 3, and water inlet house steward 6 is connected with taking thermal 15 by pipeline, takes
Thermal 15 is connected with water out house steward 10 by pipeline, and water out house steward 10 is connected with raw coal drying device 14 by pipeline,
Raw coal drying device 14 is connected with water reservoir by pipeline, and wherein taking thermal 15, to be arranged on coal low temperature as shown in Figure 2 dry
The bottom of retort section in furnace 9.
In order to the semi-coke of retort section in coal low temperature distillation stove is dropped to 300 DEG C from 600 DEG C, preferably realize taking thermal 15
Take hot purpose, take that the entrance of thermal 15 arranges water inlet thermometer 4, water inlet piezometer 5, the outlet that takes thermal are arranged
Water out piezometer 11, water outlet temperature meter 12, when water outlet temperature is higher than design temperature, open systemic circulation pump inlet valve 1
Control discharge with outlet valve 3, correspondingly, when water outlet temperature is less than design temperature, turn down pump inlet valve 1
Discharge is controlled with outlet valve 3.
With taking thermal medium outlet valve 13 and regulate the flow velocity of current direction raw coal drying device 14, control to flow to water reservoir
The temperature of water.
Taking thermal 15 and include that upper end is triangle or arc, lower end is rectangular 4 and takes Thermal protection cover 8, each
Take 2 be provided with inside Thermal protection cover 8 as depicted in figs. 1 and 2 and be shaped as the heat removing tube 7 of arch, say, that take thermal 15
In one have 4 and take Thermal protection cover 8 and 8 heat removing tubes 7;Take that Thermal protection cover 8 and coal low temperature distillation stove 9 inwall are fixing to be connected, take
Heat pipe 7 entrance is connected with water inlet house steward 6 through taking Thermal protection cover 8, and heat removing tube 7 exports through taking Thermal protection cover 8 and water out
House steward is connected.
The residual-heat utilization method for coal low temperature distillation stove based on embodiment two realizes according to following steps:
1) water is full of heat removing tube:
1-1) opening pump inlet valve 1 and outlet valve 3, water is extracted out by circulating pump 2 from water reservoir;
Water after 1-2) extracting out is along pipeline flow-direction water inlet house steward 6;
1-3) water takes Thermal protection cover 8 by water inlet house steward 6 through 4 and flows to 8 heat removing tubes 7;
2) water and 600 DEG C of semi-coke realize heat exchange: water from bottom to top flows in 8 heat removing tubes 7, and 600 DEG C of semi-coke take at 4
From top to bottom moving in space between Thermal protection cover 8,600 DEG C of semi-coke take Thermal protection cover 8 by 4 and heat are conducted to 8
Water inside heat removing tube 7, in whole diabatic process, 600 DEG C of semi-coke and water are not directly contacted with, and the semi-coke temperature after heat exchange drops to
300℃;
3) water and raw coal realize heat exchange:
Water after 3-1) realizing heat exchange with 600 DEG C of semi-coke takes heat guarantor through 4 in 8 heat removing tubes taken thermal 15
Guard shield flows to water out house steward 10;
3-2) in 8 heat removing tubes, the water of flowing controls water by taking thermal medium outlet valve 13 after water out house steward 10 converges
Flow to raw coal drying device 14;
3-3) in raw coal drying device 14, water is still that in pipeline flowing, and the run of mine coal seam outside pipeline is not directly contacted with
Indirect heat exchange process is completed by tube wall;
4) recycling of water: with raw coal realize the water after heat exchange by pipeline flow to water reservoir carry out reclaim circulation profit
With.
Embodiment three
The embodiment of the present invention provide a kind of waste heat recycling system for coal low temperature distillation stove, including oil reservoir 1,
Pump inlet valve 1, circulating pump 2, circulating-pump outlet valve 3, oil inlet house steward 6, take thermal 15, oil export house steward 10,
Raw coal drying device 14, according to oil flow direction, oil reservoir is connected with circulating pump 2 by the imported valve of circulating pump, circulation
Pump 2 is connected with oil inlet house steward 6 by circulating-pump outlet valve 3, and oil inlet house steward 6 is connected with taking thermal 15 by pipeline,
Taking thermal 15 to be connected with oil export house steward 10 by pipeline, oil export house steward 10 is by pipeline and raw coal drying device 14 phase
Even, raw coal drying device 14 is connected with oil reservoir by pipeline, wherein takes thermal 15 and is arranged on coal low temperature as shown in Figure 2
The bottom of the interior retort section of gas retort 9.
In order to the semi-coke of retort section in coal low temperature distillation stove is dropped to 300 DEG C from 600 DEG C, preferably realize taking thermal 15
Take hot purpose, take that the entrance of thermal 15 arranges oil inlet thermometer 4, oil inlet piezometer 5, the outlet that takes thermal are arranged
Oil export piezometer 11, oil export thermometer 12, when oil export temperature is higher than design temperature, open systemic circulation pump inlet valve 1
Control oil flow with outlet valve 3, correspondingly, when oil export temperature is less than design temperature, turn down pump inlet valve 1
Oil flow is controlled with outlet valve 3.
Regulate oil flow to the flow velocity of raw coal drying device 14 with taking thermal medium outlet valve 13, control to flow to oil reservoir
Oil temperature.
Taking thermal 15 and include that upper end is triangle or arc, lower end is rectangular 4 and takes Thermal protection cover 8, each
Take 2 be provided with inside Thermal protection cover 8 as depicted in figs. 1 and 2 and be shaped as the heat removing tube 7 of arch, say, that take thermal 15
In one have 4 and take Thermal protection cover 8 and 8 heat removing tubes 7;Take that Thermal protection cover 8 and coal low temperature distillation stove 9 inwall are fixing to be connected, take
Heat pipe 7 entrance is connected with oil inlet house steward 6 through taking Thermal protection cover 8, and heat removing tube 7 exports through taking Thermal protection cover 8 and oil export
House steward is connected.
The residual-heat utilization method for coal low temperature distillation stove based on embodiment three realizes according to following steps:
1) the full heat removing tube of oil:
1-1) opening pump inlet valve 1 and outlet valve 3, oil is extracted out by circulating pump 2 from oil reservoir;
Oil after 1-2) extracting out is along pipeline flow-direction oil inlet house steward 6;
1-3) oil takes Thermal protection cover 8 by oil inlet house steward 6 through 4 and flows to 8 heat removing tubes 7;
2) oil and 600 DEG C of semi-coke realize heat exchange: oil from bottom to top flows in 8 heat removing tubes 7, gets off from retort section
600 DEG C of semi-coke are from top to bottom moved in 4 spaces taken between Thermal protection cover 8, and 600 DEG C of semi-coke take Thermal protection cover 8 by 4
Heat is conducted to the oil inside 8 heat removing tubes 7, and in whole diabatic process, 600 DEG C of semi-coke and oil are not directly contacted with, after heat exchange
Semi-coke temperature drop to 300 DEG C;
3) oil and raw coal realize heat exchange:
Oil after 3-1) realizing heat exchange with 100 DEG C of semi-coke takes heat guarantor through 4 in 8 heat removing tubes taken thermal 15
Guard shield flows to oil export house steward 10;
3-2) in 8 heat removing tubes, the oil of flowing controls oil by taking thermal medium outlet valve 13 after oil export house steward 10 converges
Flow to raw coal drying device 14;
3-3) in raw coal drying device 14, oil is still that in pipeline flowing, and the run of mine coal seam outside pipeline is not directly contacted with
Indirect heat exchange process is completed by tube wall;
4) oil recovery utilizes: realizes the oil after heat exchange with raw coal and flows to oil reservoir by pipeline to carry out reclaiming circulation sharp
With.
Embodiment four
The embodiment of the present invention provide a kind of waste heat recycling system for coal low temperature distillation stove, including water reservoir 1,
Pump inlet valve 1, circulating pump 2, circulating-pump outlet valve 3, water inlet house steward 6, take thermal 15, water out house steward 10,
Raw coal drying device 14, according to water flow direction, water reservoir is connected with circulating pump 2 by pump inlet valve 1, circulating pump
2 are connected with water inlet house steward 6 by circulating-pump outlet valve 3, and water inlet house steward 6 is connected with taking thermal 15 by pipeline, takes
Thermal 15 is connected with water out house steward 10 by pipeline, and water out house steward 10 is connected with raw coal drying device 14 by pipeline,
Raw coal drying device 14 is connected with water reservoir by pipeline, and wherein taking thermal 15, to be arranged on coal low temperature as shown in Figure 2 dry
The bottom of retort section in furnace 9.
In order to the semi-coke of retort section in coal low temperature distillation stove is dropped to 300 DEG C from 600 DEG C, preferably realize taking thermal 15
Take hot purpose, take that the entrance of thermal 15 arranges water inlet thermometer 4, water inlet piezometer 5, the outlet that takes thermal are arranged
Water out piezometer 11, water outlet temperature meter 12, when water outlet temperature is higher than design temperature, open systemic circulation pump inlet valve 1
Control discharge with outlet valve 3, correspondingly, when water outlet temperature is less than design temperature, turn down pump inlet valve 1
Discharge is controlled with outlet valve 3.
With taking thermal medium outlet valve 13 and regulate the flow velocity of current direction raw coal drying device 14, control to flow to water reservoir
The temperature of water.
Taking thermal 15 and include that upper end is triangle or arc, lower end is rectangular 7 and takes Thermal protection cover 8, each
Take 2 be provided with inside Thermal protection cover 8 as depicted in figs. 1 and 2 and be shaped as the heat removing tube 7 of arch, say, that take thermal 15
In one have 7 and take Thermal protection cover 8 and 14 heat removing tubes 7;Take that Thermal protection cover 8 and coal low temperature distillation stove 9 inwall are fixing to be connected, take
Heat pipe 7 entrance is connected with water inlet house steward 6 through taking Thermal protection cover 8, and heat removing tube 7 exports through taking Thermal protection cover 8 and water out
House steward is connected.
The residual-heat utilization method for coal low temperature distillation stove based on embodiment four realizes according to following steps:
1) water is full of heat removing tube:
1-1) opening pump inlet valve 1 and outlet valve 3, water is extracted out by circulating pump 2 from water reservoir;
Water after 1-2) extracting out is along pipeline flow-direction water inlet house steward 6;
1-3) water takes Thermal protection cover 8 by water inlet house steward 6 through 7 and flows to 14 heat removing tubes 7;
2) water and 600 DEG C of semi-coke realize heat exchange: water from bottom to top flows in 14 heat removing tubes 7, and 600 DEG C of semi-coke are at 7
Taking and from top to bottom move in the space between Thermal protection cover 8,600 DEG C of semi-coke take Thermal protection cover 8 by 7 and heat are conducted to 14
Water inside root heat removing tube 7, in whole diabatic process, 600 DEG C of semi-coke and water are not directly contacted with, and the semi-coke temperature after heat exchange drops to
300℃;
3) water and raw coal realize heat exchange:
Water after 3-1) realizing heat exchange with 100 DEG C of semi-coke takes heat through 7 in 14 heat removing tubes taken thermal 15
Protective cover flows to water out house steward 10;
3-2) in 14 heat removing tubes, the water of flowing controls by taking thermal medium outlet valve 13 after water out house steward 10 converges
Current direction raw coal drying device 14;
3-3) in raw coal drying device 14, water is still that in pipeline flowing, and the run of mine coal seam outside pipeline is not directly contacted with
Indirect heat exchange process is completed by tube wall;
4) recycling of water: with raw coal realize the water after heat exchange by pipeline flow to water reservoir carry out reclaim circulation profit
With.
Embodiment five
The embodiment of the present invention provide a kind of waste heat recycling system for coal low temperature distillation stove, including water reservoir 1,
Pump inlet valve 1, circulating pump 2, circulating-pump outlet valve 3, water inlet house steward 6, take thermal 15, water out house steward 10,
Oil tank attemperator 14, according to water flow direction, water reservoir is connected with circulating pump 2 by the imported valve 1 of circulating pump, circulation
Pump 2 is connected with water inlet house steward 6 by pipeline, and water inlet house steward 6 is connected with taking thermal 15 by circulating-pump outlet valve 3,
Taking thermal 15 to be connected with water out house steward 10 by pipeline, water out house steward 10 is by pipeline and oil tank attemperator 14 phase
Even, oil tank attemperator 14 is connected with water reservoir by pipeline, wherein takes thermal 15 and is arranged on coal low temperature as shown in Figure 2
The bottom of the interior retort section of gas retort 9.
In order to the semi-coke of retort section in coal low temperature distillation stove is dropped to 300 DEG C from 600 DEG C, preferably realize taking thermal 15
Take hot purpose, take that the entrance of thermal 15 arranges water inlet thermometer 4, water inlet piezometer 5, the outlet that takes thermal are arranged
Water out piezometer 11, water outlet temperature meter 12, when water outlet temperature is higher than design temperature, open systemic circulation pump inlet valve 1
Control discharge with outlet valve 3, correspondingly, when water outlet temperature is less than design temperature, turn down pump inlet valve 1
Discharge is controlled with outlet valve 3.
With taking thermal medium outlet valve 13 and regulate the flow velocity of current direction oil tank attemperator 14, control to flow to water reservoir
The temperature of water.
Taking thermal 15 and include that upper end is triangle or arc, lower end is rectangular 7 and takes Thermal protection cover 8, each
Take 2 be provided with inside Thermal protection cover 8 as depicted in figs. 1 and 2 and be shaped as the heat removing tube 7 of arch, say, that take thermal 15
In one have 7 and take Thermal protection cover 8 and 14 heat removing tubes 7.
The residual-heat utilization method for coal low temperature distillation stove based on embodiment five realizes according to following steps:
1) water is full of heat removing tube:
1-1) opening pump inlet valve 1 and outlet valve 3, water is extracted out by circulating pump 2 from water reservoir;
Water after 1-2) extracting out is along pipeline flow-direction water inlet house steward 6;
1-3) water takes Thermal protection cover 8 by water inlet house steward 6 through 7 and flows to 14 heat removing tubes 7;
2) water and 600 DEG C of semi-coke realize heat exchange: water from bottom to top flows in 14 heat removing tubes 7, and 600 DEG C of semi-coke are at 7
Taking and from top to bottom move in the space between Thermal protection cover 8,600 DEG C of semi-coke take Thermal protection cover 8 by 7 and heat are conducted to 14
Water inside root heat removing tube 7, in whole diabatic process, 600 DEG C of semi-coke and water are not directly contacted with, and the semi-coke temperature after heat exchange drops to
300℃;
3) water and oil tank realize heat exchange:
Water after 3-1) realizing heat exchange with 100 DEG C of semi-coke takes heat through 7 in 14 heat removing tubes taken thermal 15
Protective cover flows to water out house steward 10;
3-2) in 14 heat removing tubes, the water of flowing controls by taking thermal medium outlet valve 13 after water out house steward 10 converges
Current direction oil tank attemperator 14;
3-3) in oil tank attemperator 14, water is still that in pipeline flowing, and the oil of the oil tank outside pipeline the most directly connects
Touch and complete indirect heat exchange process by tube wall;
4) recycling of water: with oil tank realize the water after heat exchange by pipeline flow to water reservoir carry out reclaim circulation profit
With.
Embodiment six
The embodiment of the present invention provide a kind of waste heat recycling system for coal low temperature distillation stove, including water reservoir 1,
Pump inlet valve 1, circulating pump 2, circulating-pump outlet valve 3, water inlet house steward 6, take thermal 15, water out house steward 10,
Producing plant area's heating plant 14, according to water flow direction, water reservoir is connected with circulating pump 2 by pump inlet valve 1, follows
Ring pump 2 is connected with water inlet house steward 6 by circulating-pump outlet valve 3, and water inlet house steward 6 passes through pipeline and takes thermal 15 phase
Even, taking thermal 15 and be connected with water out house steward 10 by pipeline, water out house steward 10 is filled with producing plant area's heat supply by pipeline
Put 14 to be connected, produce plant area's heating plant 14 and be connected with water reservoir by pipeline, wherein take thermal 15 and be arranged on such as Fig. 2 institute
The bottom of the interior retort section of the coal low temperature distillation stove 9 shown.
In order to the semi-coke of retort section in coal low temperature distillation stove is dropped to 200 DEG C from 600 DEG C, preferably realize taking thermal 15
Take hot purpose, take that the entrance of thermal 15 arranges water inlet thermometer 4, water inlet piezometer 5, the outlet that takes thermal are arranged
Water out piezometer 11, water outlet temperature meter 12, when water outlet temperature is higher than design temperature, open systemic circulation pump inlet valve 1
Control discharge with outlet valve 3, correspondingly, when water outlet temperature is less than design temperature, turn down pump inlet valve 1
Discharge is controlled with outlet valve 3.
Regulate current direction produce the flow velocity of plant area heating plant 14 with taking thermal medium outlet valve 13, control to flow to water storage
The temperature of the water of reservoir.
Taking thermal 15 and include that upper end is triangle or arc, lower end is rectangular 7 and takes Thermal protection cover 8, each
Take 2 be provided with inside Thermal protection cover 8 as depicted in figs. 1 and 2 and be shaped as the heat removing tube 7 of arch, say, that take thermal 15
In one have 7 and take Thermal protection cover 8 and 14 heat removing tubes 7;Take that Thermal protection cover 8 and coal low temperature distillation stove 9 inwall are fixing to be connected, take
Heat pipe 7 entrance is connected with water inlet house steward 6 through taking Thermal protection cover 8, and heat removing tube 7 exports through taking Thermal protection cover 8 and water out
House steward is connected.
The residual-heat utilization method for coal low temperature distillation stove based on embodiment six realizes according to following steps:
1) water is full of heat removing tube:
1-1) opening pump inlet valve 1 and outlet valve 3, water is extracted out by circulating pump 2 from water reservoir;
Water after 1-2) extracting out is along pipeline flow-direction water inlet house steward 6;
1-3) water takes Thermal protection cover 8 by water inlet house steward 6 through 7 and flows to 14 heat removing tubes 7;
2) water and 600 DEG C of semi-coke realize heat exchange: water from bottom to top flows in 14 heat removing tubes 7, gets off from retort section
600 DEG C of semi-coke are from top to bottom moved in 7 spaces taken between Thermal protection cover 8, and 600 DEG C of semi-coke take Thermal protection cover 8 by 7
Heat is conducted to the water inside 14 heat removing tubes 7, and in whole diabatic process, 600 DEG C of semi-coke and water are not directly contacted with, after heat exchange
Semi-coke temperature drop to 200 DEG C;
3) water is to producing plant area's heat supply:
Water after 3-1) realizing heat exchange with 600 DEG C of semi-coke takes heat through 7 in 14 heat removing tubes taken thermal 15
Protective cover flows to water out house steward 10;
3-2) in 14 heat removing tubes, the water of flowing controls by taking thermal medium outlet valve 13 after water out house steward 10 converges
Current direction produces plant area's heating plant 14;
3-3) in producing plant area's heating plant 14, water is still that in pipeline flowing, is supplied to producing plant area by tube wall
Heat;
4) recycling of water: flow to water reservoir by pipeline and carry out recovery to producing the water after plant area realizes heat supply and follow
Ring utilizes.
Embodiment seven
The embodiment of the present invention provide a kind of waste heat recycling system for coal low temperature distillation stove, including oil reservoir 1,
Pump inlet valve 1, circulating pump 2, circulating-pump outlet valve 3, oil inlet house steward 6, take thermal 15, oil export house steward 10,
Producing plant area's heating plant 14, according to oil flow direction, oil reservoir is connected with circulating pump 2 by pump inlet valve 1, follows
Ring pump 2 is connected with oil inlet house steward 6 by circulating-pump outlet valve 3, and oil inlet house steward 6 passes through pipeline and takes thermal 15 phase
Even, taking thermal 15 and be connected with oil export house steward 10 by pipeline, oil export house steward 10 is filled with producing plant area's heat supply by pipeline
Put 14 to be connected, produce plant area's heating plant 14 and be connected with oil reservoir by pipeline, wherein take thermal 15 and be arranged on such as Fig. 2 institute
The bottom of the interior retort section of the coal low temperature distillation stove 9 shown.
In order to the semi-coke of retort section in coal low temperature distillation stove is dropped to 100 DEG C from 600 DEG C, preferably realize taking thermal 15
Take hot purpose, take that the entrance of thermal 15 arranges oil inlet thermometer 4, oil inlet piezometer 5, the outlet that takes thermal are arranged
Oil export piezometer 11, oil export thermometer 12, when oil export temperature is higher than design temperature, open systemic circulation pump inlet valve 1
Control oil flow with outlet valve 3, correspondingly, when oil export temperature is less than design temperature, turn down pump inlet valve 1
Oil flow is controlled with outlet valve 3.
Regulate the oily flow velocity flowing to produce plant area's heating plant 14 with taking thermal medium outlet valve 13, control to flow to oil storage
The temperature of the oil of reservoir.
Taking thermal 15 and include that upper end is triangle or arc, lower end is rectangular 9 and takes Thermal protection cover 8, each
Take 2 be provided with inside Thermal protection cover 8 as depicted in figs. 1 and 2 and be shaped as the heat removing tube 7 of arch, say, that take thermal 15
In one have 9 and take Thermal protection cover 8 and 18 heat removing tubes 7;Take that Thermal protection cover 8 and coal low temperature distillation stove 9 inwall are fixing to be connected, take
Heat pipe 7 entrance is connected with oil inlet house steward 6 through taking Thermal protection cover 8, and heat removing tube 7 exports through taking Thermal protection cover 8 and oil export
House steward is connected.
The residual-heat utilization method for coal low temperature distillation stove based on embodiment seven realizes according to following steps:
1) the full heat removing tube of oil:
1-1) opening pump inlet valve 1 and outlet valve 3, oil is extracted out by circulating pump 2 from oil reservoir;
Oil after 1-2) extracting out is along pipeline flow-direction oil inlet house steward 6;
1-3) oil takes Thermal protection cover 8 by oil inlet house steward 6 through 9 and flows to 18 heat removing tubes 7;
2) oil and 600 DEG C of semi-coke realize heat exchange: oil from bottom to top flows in 18 heat removing tubes 7, gets off from retort section
600 DEG C of semi-coke are from top to bottom moved in 9 spaces taken between Thermal protection cover 8, and 600 DEG C of semi-coke take Thermal protection cover 8 by 9
Heat is conducted to the oil inside 18 heat removing tubes 7, and in whole diabatic process, 600 DEG C of semi-coke and oil are not directly contacted with, after heat exchange
Semi-coke temperature drop to 100 DEG C;
3) oil is to producing plant area's heat supply:
Oil after 3-1) realizing heat exchange with 600 DEG C of semi-coke takes heat through 9 in 18 heat removing tubes taken thermal 15
Protective cover flows to oil export house steward 10;
3-2) in 18 heat removing tubes, the oil of flowing controls by taking thermal medium outlet valve 13 after oil export house steward 10 converges
Oil flows to produce plant area's heating plant 14;
3-3) in producing plant area's heating plant 14, oil is still that in pipeline flowing, is supplied to producing plant area by tube wall
Heat;
4) oil recovery utilizes: flows to oily reservoir by pipeline and carries out recovery to producing the oil after plant area realizes heat supply and follow
Ring utilizes.
Embodiment eight
As it is shown in figure 1, the embodiment of the present invention provides a kind of waste heat recycling system for coal low temperature distillation stove, including
Gas reservoir 1, pump inlet valve 1, circulating pump 2, circulating-pump outlet valve 3, gas feed house steward 6, take thermal 15,
Gas outlet header 10, oil tank attemperator 14, according to gas flow direction, gas reservoir passes through pump inlet valve 1
Being connected with circulating pump 2, circulating pump 2 is connected with gas feed house steward 6 by circulating-pump outlet valve 3, and gas feed house steward 6 passes through
Pipeline is connected with taking thermal 15, takes thermal 15 and is connected with gas outlet header 10 by pipeline, and gas outlet header passes through
Pipeline is connected with oil tank attemperator 14, and oil tank attemperator 14 is connected with gas reservoir by pipeline, wherein takes thermal
The bottom of the 15 interior retort section being arranged on coal low temperature distillation stove 9 as shown in Figure 2.
In order to the semi-coke of retort section in coal low temperature distillation stove is dropped to 300 DEG C from 600 DEG C, preferably realize taking thermal 15
Take hot purpose, take the entrance of thermal 15 and gas inlet temperature meter 4, gas feed piezometer 5 be set, take the outlet of thermal
Gas outlet pressure meter 11, gas outlet temperature meter 12 are set, when gas outlet temperature is higher than design temperature, drive systemic circulation pump
Imported valve 1 and outlet valve 3 control gas flow, correspondingly, when gas outlet temperature is less than design temperature, turns down and follow
Ring pump inlet valve 1 and outlet valve 3 control gas flow.
With taking thermal medium outlet valve 13 and regulate the flow velocity of gas flow oil tank attemperator 14, control to flow to gas storage
The temperature of the gas of reservoir.
Taking thermal 15 and include that upper end is triangle or arc, lower end is rectangular 9 and takes Thermal protection cover 8, each
Take 1 be provided with inside Thermal protection cover 8 as depicted in figs. 1 and 2 and be shaped as the heat removing tube 7 of arch, say, that take thermal 15
In one have 9 and take Thermal protection cover 8 and 9 heat removing tubes 7;Take that Thermal protection cover 8 and coal low temperature distillation stove 9 inwall are fixing to be connected, take
Heat pipe 7 entrance is connected with gas feed house steward 6 through taking Thermal protection cover 8, and heat removing tube 7 exports through taking Thermal protection cover 8 and gas
Outlet header is connected.
The residual-heat utilization method for coal low temperature distillation stove based on embodiment eight realizes according to following steps:
1) gas is full of heat removing tube:
1-1) opening pump inlet valve 1 and outlet valve 3, gas is extracted out by circulating pump 2 from gas reservoir;
Gas after 1-2) extracting out is along pipeline flow-direction gas feed house steward 6;
1-3) gas takes Thermal protection cover 8 by gas feed house steward 6 through 9 and flows to 9 heat removing tubes 7;
2) gas and 600 DEG C of semi-coke realize heat exchange: gas from bottom to top flows in 8 heat removing tubes 7, gets off from retort section
600 DEG C of semi-coke from top to bottom move in 9 spaces taken between Thermal protection cover 8,600 DEG C of semi-coke take Thermal protection by 9
Heat is conducted to the gas inside 8 heat removing tubes 7 by cover 8, and in whole diabatic process, 600 DEG C of semi-coke and gas are not directly contacted with,
Semi-coke temperature after heat exchange drops to 300 DEG C;
3) gas and oil tank realize heat exchange:
Gas after 3-1) realizing heat exchange with 600 DEG C of semi-coke takes heat through 9 in 9 heat removing tubes taken thermal 15
Protective cover flows to gas outlet header 10;
3-2) in 9 heat removing tubes, the gas of flowing is controlled by taking thermal medium outlet valve 13 after gas outlet header 10 converges
Gas flow oil tank attemperator 14 processed;
3-3) in oil tank attemperator 14, gas is still that in pipeline flowing, and the oil tank outside pipeline is not directly contacted with
Indirect heat exchange process is completed by tube wall;
4) recycling of gas: realize the gas after heat exchange with oil tank and flow to gas reservoir by pipeline and reclaim
Recycle.
Above example is only the exemplary embodiment of the present invention, is not used in the restriction present invention, and those skilled in the art can
With within the scope of the present invention, the present invention making various amendment or equivalent, this amendment or equivalent also should
It is considered as being within the scope of the present invention.
Claims (10)
1. the waste heat recycling system for coal low temperature distillation stove, it is characterised in that: include taking thermal medium reservoir, following
The imported valve (1) of ring pump, circulating pump (2), the outlet valve (3) of circulating pump, take thermal medium inlet house steward (6), take thermal
(15), take thermal medium inlet house steward (10), residual heat using device (14), according to taking thermal medium flow direction, take thermal medium savings
Pond is connected with circulating pump (2) by the imported valve (1) of circulating pump, circulating pump (2) by the outlet valve (3) of circulating pump with take
Thermal medium inlet house steward (6) is connected, and takes thermal medium inlet house steward (6) and is connected with taking thermal (15) by pipeline, takes thermal
(15) it is connected with taking thermal medium inlet house steward (10) by pipeline, takes thermal medium inlet house steward (6) by pipeline and UTILIZATION OF VESIDUAL HEAT IN
Device (14) is connected, and residual heat using device (14) is connected with taking thermal medium reservoir by pipeline, and described takes thermal (15)
It is arranged on the bottom of coal low temperature distillation stove (9) interior retort section.
A kind of waste heat recycling system for coal low temperature distillation stove the most according to claim 1, it is characterised in that: take
The entrance of thermal medium inlet house steward (6) sets gradually and takes thermal medium inlet thermometer (4), takes thermal medium inlet piezometer (5), takes
The outlet of thermal medium inlet house steward (6) sets gradually and takes thermal medium outlet piezometer (11), takes thermal medium outlet thermometer (12).
A kind of waste heat recycling system for coal low temperature distillation stove the most according to claim 1, it is characterised in that:
Take to be provided with between thermal medium inlet house steward (6) and residual heat using device (14) and take thermal medium outlet valve (13) and control from taking heat
Medium entrance house steward (6) out flows to the flow velocity taking thermal medium of residual heat using device (14).
A kind of waste heat recycling system for coal low temperature distillation stove the most according to claim 1, it is characterised in that: institute
The thermal (15) that takes stated includes taking Thermal protection cover (8) and heat removing tube (7), and described takes Thermal protection cover (8) and coal low temperature distillation
The inwall of stove (9) is fixing to be connected, described take Thermal protection cover (8) in be provided with described heat removing tube (7), described heat removing tube (7)
Entrance is through taking Thermal protection cover (8) and taking thermal medium inlet house steward (6) and be connected, and heat removing tube (7) outlet is through taking Thermal protection cover (8)
It is connected with taking thermal medium inlet house steward (6).
A kind of waste heat recycling system for coal low temperature distillation stove the most according to claim 4, it is characterised in that: institute
That states takes Thermal protection cover (8) at least provided with one.
A kind of waste heat recycling system for coal low temperature distillation stove the most according to claim 4, it is characterised in that: institute
Thermal protection cover (8) upper end that takes stated is triangle or arc, and described Thermal protection cover (8) lower end that takes is rectangle.
A kind of waste heat recycling system for coal low temperature distillation stove the most according to claim 4, it is characterised in that: institute
One stated takes inner at least 1 heat removing tube (7) being provided with arch of Thermal protection cover (8).
8. according to the arbitrary described a kind of waste heat recycling system for coal low temperature distillation stove of claim 1-7, its feature
It is: the described thermal medium that takes is water, gas or oil.
A kind of waste heat recycling system for coal low temperature distillation stove the most according to claim 8, it is characterised in that: institute
The residual heat using device (14) stated is raw coal drying device, oil tank attemperator or produces plant area's heating plant.
10. a residual-heat utilization method, uses a kind of heat recovery for coal low temperature distillation stove described in claim 9
System, it is characterised in that comprise the following steps:
1) take thermal medium and be full of heat removing tube:
1-1) opening pump inlet valve (1) and circulating-pump outlet valve (3), circulating pump (2) will take thermal medium from taking heat Jie
Matter reservoir is extracted out;
The thermal medium that takes after 1-2) extracting out takes thermal medium inlet house steward (6) along pipeline flow-direction;
1-3) take thermal medium and flow through and take thermal (15) by taking thermal medium inlet house steward (6);
2) take thermal medium and 600 DEG C of semi-coke realize heat exchange: thermal (15) is inner from bottom to top to flow, from dry distilling taking to take thermal medium
Thermal (15) is inner from top to bottom moves 600 DEG C of semi-coke getting off of section taking, and 600 DEG C of semi-coke are by taking thermal (15) by heat
Be conducted to take thermal (15) the inside takes thermal medium, in whole diabatic process, and 600 DEG C of semi-coke and take thermal medium and the most directly connect
Touching, the semi-coke temperature after heat exchange drops to 300-100 DEG C;
3) take thermal medium and residual heat using device and realize heat exchange:
The thermal medium that takes after 3-1) realizing heat exchange with 600 DEG C of semi-coke takes thermal medium inlet house steward from taking flow direction of thermal (15)
(10);
The thermal medium that takes 3-2) taking the inner flowing of thermal (15) fills by flowing to UTILIZATION OF VESIDUAL HEAT IN after taking thermal medium inlet house steward (10)
Put (14);
3-3) in residual heat using device (14), take thermal medium and be still that in pipeline flowing, and residual heat using device (14) is the most straight
Contact completes indirect heat exchange process by tube wall;
4) recycling of thermal medium is taken: the thermal medium that takes after realizing heat exchange with residual heat using device (14) flows to take by pipeline
Thermal medium reservoir carries out recycle and reuse.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110779318A (en) * | 2019-03-14 | 2020-02-11 | 邢台旭阳科技有限公司 | Wet coal drying device and wet coal drying method using same |
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CN101463259A (en) * | 2007-12-19 | 2009-06-24 | 神木县三江煤化工有限责任公司 | Low temperature dry distillation coke oven hot-water circulation utilizing system |
CN104178189A (en) * | 2014-08-21 | 2014-12-03 | 同济大学 | Falling-type pyrolyzer |
CN104236337A (en) * | 2014-09-29 | 2014-12-24 | 山东理工大学 | Heat exchanger for semicoke residual heat utilization |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN1966612A (en) * | 2006-10-30 | 2007-05-23 | 陕西省神木县三江煤化工有限责任公司 | Low-temperature coal carbonization manufacturing technique |
CN101463259A (en) * | 2007-12-19 | 2009-06-24 | 神木县三江煤化工有限责任公司 | Low temperature dry distillation coke oven hot-water circulation utilizing system |
CN104178189A (en) * | 2014-08-21 | 2014-12-03 | 同济大学 | Falling-type pyrolyzer |
CN104236337A (en) * | 2014-09-29 | 2014-12-24 | 山东理工大学 | Heat exchanger for semicoke residual heat utilization |
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CN110779318A (en) * | 2019-03-14 | 2020-02-11 | 邢台旭阳科技有限公司 | Wet coal drying device and wet coal drying method using same |
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